21570828

素因数分解:

$2^2\times 3^1\times {\mathrm{389}}^1\times {\mathrm{4621}}^1$

素因数の和:5017

約数の個数: 24

約数和(自身を含む): 50472240

約数和(自身を除く): 28901412

約数列:

[1, 2, 3, 4, 6, 12, 389, 778, 1167, 1556, 2334, 4621, 4668, 9242, 13863, 18484, 27726, 55452, 1797569, 3595138, 5392707, 7190276, 10785414, 21570828]

約数ペア:

[(1, 21570828), (2, 10785414), (3, 7190276), (4, 5392707), (6, 3595138), (12, 1797569), (389, 55452), (778, 27726), (1167, 18484), (1556, 13863), (2334, 9242), (4621, 4668)]